Re: [cryptography] A comparatively efficient software for embedding secret information bits into nataural language texts

2017-01-16 Thread mok-kong shen

Am 16.01.2017 um 00:55 schrieb Kevin:

An attacker could easily flip bits until the key is found.  Also, what
is the typical key length?  Furthermore, couldn't an attacker get a hold
of the software's dictionary?


I suppose you haven't closely examined what's stated in my
software. The dictionary that is used is public. Depending
upon a secret key, two separate lists of words are derived
from that dictionary. Words in list0 implies 0, words in
list1 implies 1. The user has to (with his ingenuity)
formulate (with the guidance by the software) a covertext
with appropriate words such that a given sequence of stegobits
can be transmitted with it. For my personal conception of
a suitable key, see the example given in the software.

M. K. Shen

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Re: [cryptography] A comparatively efficient software for embedding secret information bits into nataural language texts

2017-01-15 Thread Kevin
An attacker could easily flip bits until the key is found.  Also, what 
is the typical key length?  Furthermore, couldn't an attacker get a hold 
of the software's dictionary?




On 1/15/2017 4:19 PM, mok-kong shen wrote:


WORDLISTTEXTSTEGANOGRAPHY is a new software (employing an extensive
English word list) which, while performing linguistic steganography,
also involves pseudo-random separation of the word list into two
sublists (for denoting 0 and 1 bits) that are dependent on dynamic
session-key materials, thus furnishing simultaneously substantial
cryptographical security for the embedded stego bits.

The software has a stegobit embedding rate of roughly 0.5 or higher
per word of cover-text which the user composes to be as natural as
possible under the guidance of the software. To my knowledge there
is currently no other linguistic stego software that could compete
with it, when both the naturalness of the cover texts and the
stegobit embedding rate are taken into consideration as evaluation
criteria.

The software in Python with a GUI coded in tkinter is available at:
http://s13.zetaboards.com/Crypto/topic/9024439/1/

For comments and critiques I should be very grateful.

M. K. Shen
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[cryptography] A comparatively efficient software for embedding secret information bits into nataural language texts

2017-01-15 Thread mok-kong shen


WORDLISTTEXTSTEGANOGRAPHY is a new software (employing an extensive
English word list) which, while performing linguistic steganography,
also involves pseudo-random separation of the word list into two
sublists (for denoting 0 and 1 bits) that are dependent on dynamic
session-key materials, thus furnishing simultaneously substantial
cryptographical security for the embedded stego bits.

The software has a stegobit embedding rate of roughly 0.5 or higher
per word of cover-text which the user composes to be as natural as
possible under the guidance of the software. To my knowledge there
is currently no other linguistic stego software that could compete
with it, when both the naturalness of the cover texts and the
stegobit embedding rate are taken into consideration as evaluation
criteria.

The software in Python with a GUI coded in tkinter is available at:
http://s13.zetaboards.com/Crypto/topic/9024439/1/

For comments and critiques I should be very grateful.

M. K. Shen
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